EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting When There is Error Display
101
Confidential
3.2.43 ROM Checksum Error (Program)
This error is a built-in program ROM fault.
Note :
The Main Board Assy and Memory Board Assy used with EPL-N3000 are as listed
below. The program ROM is mounted on the Memory Board Assy.
For details, refer to
“2.7 Operating Principles of Electric Circuitry
(p.61)”
.
3.2.44 Option ROM Error
This error is an optional ROM fault.
Table 3-46. Troubleshooting for “ROM Checksum Error (Program)”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• BOARD ASSY., MAIN
(p.299)
• Standard ROM-DIMM
1
Checking the standard ROM-DIMM
1. Check to see if the mounted ROM-DIMM is exactly
as specified and connected properly. (Remove once
and then install again)
♦
Does the error still occur?
Go to Step 2
Problem
solved
2
Replace the standard ROM-DIMM
1. Replace the Standard ROM-DIMM.
♦
Does the error still occur?
Go to Step 3
Replace the
faulty ROM-
DIMM
3
BOARD ASSY., MAIN
1. Replace the BOARD ASSY., MAIN.
♦
Does the error still occur?
Go to
3.4.17
Electrical
Noise
(p.127)
Problem
solved
Parts Name
Spec
BOARD ASSY., MAIN
C553MAIN
BOARD ASSY, MEMORY
C533PROG
Table 3-47. Troubleshooting for “Option ROM Error”
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• BOARD ASSY., MAIN
(p.299)
• Option ROM-DIMM (PS module/Form overlay)
1
Checking the option ROM-DIMM
1. Check to see if the mounted ROM-DIMM is exactly
as specified and connected properly. (Remove once
and then install again)
♦
Does the error still occur?
Go to Step 2
Problem
solved
2
Replace the option ROM-DIMM
1. Replace the option ROM-DIMM.
♦
Does the error still occur?
Go to Step 3
Replace the
faulty ROM-
DIMM
3
BOARD ASSY., MAIN
1. Replace the BOARD ASSY., MAIN.
♦
Does the error still occur?
Go to
3.4.17
Electrical
Noise
(p.127)
Problem
solved
Summary of Contents for AcuLaser M4000N
Page 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Page 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Page 404: ...Confidential C H A P T E R 6 MAINTENANCE ...